Oven system



Aug. 4, 1931. A. o. ROBERTS OVEN SYSTEI Filed March 21. 1928 2Sheets-Sheet l Aug, 4, 19311. QA. o. ROBERTS 1,817,209

I ovEN sYsTEu Filed March .'21f 1928 2 Sheets-Sheet 2 INVENTOR.'

il? 2'4 3 By terL 0, Robgr A TTRNEY.

Patented Aug. 4, 1931 l UNITED STATES PATENT OFFICE ALBERT O. ROBERTS,OF DEARBORN, MICHGAN,-ASSIGNOR TO BUDD WHEEL COMPANY, OF PHILADELPHIA,PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA OVEN SYSTEM Applicationfiled March 21, 1928. Serial No. 263,276.

g of the conveyor, and they form of the article treated mayeach or allbe varied. So too, the treatment to which the article is subjected maybe varied.

-Y Thus while in my invention has been pro- 15 duced an oven in whichwheels are dried, it

may be used equally well with an oven or the lilre in which wheels areheat treated, washed,

etc. Y

Irrespective of these considerations, my

220 prime object is to derive an economy of the useof heat or othermedium used to treat lthe wheels. Other objects are to economize thelabor usedv in operatingthe oven, and the rendering of the treating ashighly etli- 2 5 cient as possible. AA simplified 'and cheapened ovenand conveyingl system result,and vabove all, a far greater rate ofproduction.

These several important advantages and their wide field 0f utility Iderive through the combination of one or more thru conveyor ways forarticles to'be treated, with lock type doors at each end 'of each way,which lock type doors both at the same end and the opposite ends of eachthru-way are connected together for simultaneous operation insuchfashion that for doors at the loading end of the oven, the door of voneway is open for loading'operation while the door of another is open todischarge into the oven; and further in such fashion that doors at theunloading end of the loven are alternately 'opened for unloading of therims from the oven and for discharge from the doors; and such that'doors at opposite ends the door at the loading e-nd is open to load anarticle 'into the oven, while the door at the opposite end is open for'discharging an article from the door; and iinally, such that all ofthese various doors are commonly operated by one and the saineactuation.

The drawings show that form of my invention best lrnown to me at thistime.

Fig. 1 is a longitudinally vertical section of the oven system.

Fig. 2 is a transverse section on line 2 2 of Fig. 1 looking in thedirection of the arrows.

Fig. 3 is a horizontal section on line 3 3 looking in the direction ofthe arrows.

The casing of the oven in general is designated 10. It is of elongatedJorm and substantially rectangular cross section. vln it are provided,extending from one end to the other and beyond the discharge end, anupper series of conveyors 11 and a lower series of conveyors 12 in theform oil railsforming guides upon and along which the round wheel rims13 may roll from the high or loading end at the right to the low orunloading end at the left.

The oven casing 10 has a top generally inclined at the same angle as therails of the conveyors 11 and 12. The opposite ends ofthe oven areclosed by lock type doors designated generally 15 and 16 at the oppositeends of the oven. These lock type doors are the vertically sliding typeand are comprised of three gates designated at the loading end Jfrombottom to top as 17, 18, 19 and at the discharge end as 20, 21 and 22.In elevation, the three gates are in series from bottom to top, eachupper one beginning where the next lower leaves oli. They are of equalheight, the height of each gate corresponding to the distance betweenthe conveyors 11 and 12, and also theldistance between the upperconveyor 11 and the top of the oven 10. In plan.v the gates are spacedapart, the middle one being removed inwardly ot the oven a dist-ancesulicient to accommodate a single loading charge of articles to betreated, in this instance, a single wheel' rim. In width, the gates arethe full width of the furnace simultaneously taking care therefore ofthe entire number of conveyors in cach the upper and lower series 11 and12. Each group of doors comprising gates 17, 18, 19 on the one end andgates 20, 21, 22 on the oth er end is connected together forsimultaneous movement vertically a distance equal to rthe the outer andinner gates of the groupsllv` and 16, the oven is provided withtransverse floorings 29, 30 at the loading-endand 30, 31 at thedischarge end which horizontally divide the door in suchmanner as toconstitute each gate and its associated space truly a door of the locktype, the entire space of which is either open to or out off' from thegeneral space'of the oven in accordance with the relativey positionsofthelgates. The rails of the upper series of conveyors 11 are brokenin` thev plane or" the gates 18'and 21 at points 32 and 33 so that theseinner' gates may be moved vertically from the upper portion of the ovento' the lower and vice versa.

The operation and advantages-are clearly apparent. Therelativelarrangement 'of the groups and 16-is1such that gates 18 and'21alternately are movedto such that theinter# mediate gates 18 and 21alwaysoccupyfverL tically opposite positions, the onelbeing up when theother is down. In the position showny in Fig'. 1, vthe gate' 18 is up.This operation has closed off the upperlock space ofthe loading end'fromthe oven/and opened it to'receive the newly loadedwhee'l 34'. Themovement of this gate 18't'o the upper position simultaneously openedtheflower lock space tothe oven, permitting theprevi'ously fed rim 35 toenter the oven. Gate 17 simultaneousl'yclosed this lower locllspacetovthe outer air. Thus, only Vthe upper lock space is open to theouter air; Att'he discharge end','the doors of group 16" have been oper#ated opp'osit'ely. The inner gate 21 being lowered as permitted rim36t`oenter the upper loclspace, leaving'the oven spaceiproper. VThusl onthe' upper thru conveyor series 11 rims 34 are fed from the upper lockspace, kwhile rims 36 are" discharged lto the upper locl spaces at t-heopposite end. Simultaneously, gate 22 preventscomplete discharge ofwheel36. Simultaneouslyalso, the lower gate V2() entering'the recess 28permits complete discharge from the lower endv oi the whe'el'3.7occupyingthelower lock space. As resp'ects'the opposite ends ofthis-lower conveyor series 12, the upward movement ofthe inner gate 18has'previously permitted the rim` 35 to enter the oven space proper,while the downward movement of the lower gate 2O the oppositeA end haspermitted'the complete discharge' from the Dven of the'endmost One mancan operate the oven system of my invention, feeding the entire lot ofconveyors of both series. He operates from the loading or right handend, feeding the upper lock space, while the lower lock space isdischarging. and vicef versa. Otherwise, a second operator may beutilized to remove these wheels. The oven is, of course, initiallychargedl by manual. prevention ofimloading untilY after a certainnumber` have been received in the oven.

Any and all embodiment-s of my invention falling within its genericspirit are to be comprehended in the: annexed claims.

' 1'. An oven comprising a" pair of thruways ifor articles to betreated, an'd'gatesffor each way at one end of the oven connectedtogether, the one to-close through'the operas tion of the other'and viceversa.

2. Feed control mechanism for an?A oven adapted to'operate upon asuccession of arL ticles and including'a pairI of runways' forarticles'tobe t'reatedf, havingseparate receive ing and; dischargingopenings, saidf'feed con- 'i trol mechanismfcomprising two interconnect;edf gates individual to-said' runways at one end of said oven and meansforsimultaneoli'sL lymovingfone otJ said gatesftbaposition-permjttingaccess to the: oven" through the 'open ing controlled therebyan'd'tliesecondgate into-a position adaptedtoclose Vac'cesslt'o-tl1e runwaycontrolled by said second gate.

3. Feed control mechanism for'arr oven adaptedfto' operate upon'arsuccessio'n of'artiicles and including apairof? runways forar'-lticl'es to betreated,.havingseparate' receiving anddischargingop'enings, saidv fee'd control Vmechanism, lcomprising twointerconnected gatesindividualto said runways-at oneendof ing anddischargingopenings; said'feed control mechanism comprisin gy twointerconnected gates ofthe sliding type, individualto'said .runways atone=end of said` oven'andi'means for simultaneously moving one'of saidgates to a position permitting access'- tothe oven through the openingicontrolledV therebyl and lthe second gate into a positioni adapted to fclose access to the runway controlledby' said second gate. y Y A 5. Feedcontrol mechanism inacc'ordance tliefcontrol means Vvfor the first y yating 'with claim 2 in which a pair of gates as specified in that claimare located at each end of the runway, the gates at opposite ends ofeach individual runway being simultaneous- 1y and oppositely actuated bycommon actumeans.

In testimony whereof he hereunto aiixes his signature.

ALBERT O. ROBERTS.

